Summary:
The LTO/ThinLTO driver currently creates invalid bitcode by setting 
symbols marked dllimport as dso_local. The compiler often has access 
to the definition (often dllexport) and the declaration (often 
dllimport) of an object at link-time, leading to a conflicting 
declaration. This patch resolves the inconsistency by removing the
dllimport attribute.

Reviewers: tejohnson, pcc, rnk, echristo

Reviewed By: rnk

Subscribers: dmikulin, wristow, mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, dang, llvm-commits

Differential Revision: https://reviews.llvm.org/D55627

llvm-svn: 349667

Summary:
An extra ';' at the end of a namespace triggers a pedantic warning:
```
.../sanitizer_common/sanitizer_type_traits.h:42:2: warning: extra ‘;’ [-Wpedantic]
 };  // namespace __sanitizer
```

Reviewers: eugenis, delcypher

Reviewed By: eugenis

Subscribers: kubamracek, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D55849

llvm-svn: 349666

This is a set of tests that were all marked as failing becuse of pr24489. The bug is not fixed (as in more of the tests that were marked this way are failing), but this set is passing. It is possible that some of them are false positives, but there's a large number of unexpectedly passing tests on Windows, so I am doing a bulk un-xfail to get the buildbot to green.

llvm-svn: 349665

This adds a G_FCEIL generic instruction and uses it in AArch64. This adds
selection for floating point ceil where it has a supported, dedicated
instruction. Other cases aren't handled here.

It updates the relevant gisel tests and adds a select-ceil test. It also adds a
check to arm64-vcvt.ll which ensures that we don't fall back when we run into
one of the relevant cases.

llvm-svn: 349664

llvm-svn: 349663

llvm-svn: 349662

The (cmp (and X, Y) 0) pattern is greedy and ends up forming a TESTrr and consuming the and when it might be better to use one of the BMI/TBM like BLSR or BLSI.

This patch moves removes the pattern from isel and adds a post processing check to combine TESTrr+ANDrr into just a TESTrr. With this patch we are able to select the BMI/TBM instructions, but we'll also emit a TESTrr when the result is compared to 0. In many cases the peephole pass will be able to use optimizeCompareInstr to remove the TEST, but its probably not perfect.

Differential Revision: https://reviews.llvm.org/D55870

llvm-svn: 349661

Fixes https://bugs.llvm.org/show_bug.cgi?id=38743

The function removeRedundantBlockingStores is supposed to remove any blocking stores contained in each other in lockingStoresDispSizeMap.
But it currently looks only at the previous one, which will miss some cases that result in assert.

This patch refine the function to check all previous layouts until find the uncontained one. So all redundant stores will be removed.

Patch by Pengfei Wang

Differential Revision: https://reviews.llvm.org/D55642

llvm-svn: 349660

Summary:
It's a bit tricky to add a test for the failing path right now, binary support will have an easier path to exercise the path here.

* Ran clang-format.



Reviewers: andreadb

Reviewed By: andreadb

Subscribers: tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D55803

llvm-svn: 349659

Prior to this change we would show the name of the section that a memory region belonged to but not its actual region name. Now we show this,. Added a test that reuses the regions-linux-map.dmp minidump file to test this and verify the correct region names for various memory regions.

Differential Revision: https://reviews.llvm.org/D55854

llvm-svn: 349658

Need to mark the loop as started when the initialization statement is
found. It is required to prevent possible incorrect loop iteraton
variable detection during template instantiation and fix the compiler
crash during the codegen.

llvm-svn: 349657

llvm-svn: 349656

Summary:
The clang used to pick up the qualifiers of the lamba's call operator
(which is always const) and fail to show non-const methods of 'this' in
completion results.

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D55885

llvm-svn: 349655

llvm-svn: 349654

The initial commit of the Parallel STL upstream (under LLVM umbrella) based on
Parallel STL 20181204 open source release, which is available by
https://github.com/intel/parallelstl

Author: Mikhail Dvorskiy <mikhail.dvorskiy@intel.com>

Differential Revision: https://reviews.llvm.org/D55889

llvm-svn: 349653

llvm-svn: 349652

Split the Exynos test of the register offset addressing mode into separate
loads and stores tests.

llvm-svn: 349651

NetBSD intends to support only reentrant interfaces in interceptors.
When -lpthread is used without _REENTRANT defined, things are
not guaranteed to work.

This is especially important for <stdio.h> and sanitization of
interfaces around FILE.  Some APIs have alternative modes depending
on the _REENTRANT definition, and NetBSD intends to support sanitization
of the _REENTRANT ones.

Differential Revision: https://reviews.llvm.org/D55654

llvm-svn: 349650

Add a simple method to query whether any sanitizer was enabled,
via SanitizerArgs.  This will be used in the NetBSD driver to pass
additional definitions that are required by all sanitizers.

Differential Revision: https://reviews.llvm.org/D55832

llvm-svn: 349649

Differential Revision: https://reviews.llvm.org/D55830

llvm-svn: 349648

Avoid passing -faddrsig by default on NetBSD.  This platform is still
using old GNU binutils that crashes on executables containing those
sections.

Differential Revision: https://reviews.llvm.org/D55828

llvm-svn: 349647

llvm-svn: 349646

Fix the sha2 interceptor macros to use a constant for array parameter
length rather than referencing the extern variable.  Since the digest
length is provided in hash name, reuse the macro parameter for it.
Verify that the calculated value matches the one provided by system
headers.

Differential Revision: https://reviews.llvm.org/D55811

llvm-svn: 349645

Fix typos.

llvm-svn: 349644

Duplicate tests have already been moved to avx512bw-intrinsics-upgrade.ll

llvm-svn: 349643

The build.py script always runs the compiler in C++ mode, regardless of
the file extension. This results in mangled names presented to the
linker which in turn cannot find the printf symbol.

While we figure out how to solve this issue I've turned the source file
into a cpp file and added extern c. This should unbreak the bots.

llvm-svn: 349642

llvm-svn: 349641

This patch implements BTF (BPF Type Format).
The BTF is the debug info format for BPF, introduced
in the below linux patch:
  https://github.com/torvalds/linux/commit/69b693f0aefa0ed521e8bd02260523b5ae446ad7#diff-06fb1c8825f653d7e539058b72c83332
and further extended several times, e.g.,
  https://www.spinics.net/lists/netdev/msg534640.html
  https://www.spinics.net/lists/netdev/msg538464.html
  https://www.spinics.net/lists/netdev/msg540246.html



The main advantage of implementing in LLVM is:
   . better integration/deployment as no extra tools are needed.
   . bpf JIT based compilation (like bcc, bpftrace, etc.) can get
     BTF without much extra effort.
   . BTF line_info needs selective source codes, which can be
     easily retrieved when inside the compiler.

This patch implemented BTF generation by registering a BPF
specific DebugHandler in BPFAsmPrinter.

Signed-off-by: Yonghong Song <yhs@fb.com>

Differential Revision: https://reviews.llvm.org/D55752

llvm-svn: 349640

llvm-svn: 349639

llvm-svn: 349638

Summary:
Import libraries as created by llvm-dlltool always use the same archive
member name for every object file (namely, the DLL library name). Ensure
that long names are not repeatedly stored in the string table.

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D55860

llvm-svn: 349637

Summary:
This change relaxes the requirements on the utility
`rewriteExprFromNumberToDuration` function, and introduces new checking
inside of the `abseil-duration-comparison` check to allow macro argument
expression transformation.

Differential Revision: https://reviews.llvm.org/D55784

llvm-svn: 349636

Without this patch, clang doesn't complain that X needs explicit data
sharing attributes in the following:

```
 #pragma omp target teams default(none)
 {
   #pragma omp parallel num_threads(X)
     ;
 }
```

However, clang does produce that complaint after the braces are
removed.  With this patch, clang complains in both cases.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D55861

llvm-svn: 349635

This patch aims to enable the tests for the compiler-rt builtin functions (that
currently already exist within compiler-rt) for PowerPC 64bit LE (ppc64le).
Previously when unit tests are run, these tests would be reported as
UNSUPPORTED. This patch updates the REQUIRES line for each test (to enable for
ppc64le), and each test is linked against compiler-rt when running.

Differential Revision: https://reviews.llvm.org/D54449

llvm-svn: 349634

llvm-svn: 349633

llvm-svn: 349632

Sibling patch to D55855, this emits UADD_SAT/USUB_SAT generic intrinsics for the SSE saturated math intrinsics instead of expanding to a IR code sequence that could be difficult to reassemble.

Differential Revision: https://reviews.llvm.org/D55879

llvm-svn: 349631

Now that we use the generic ISD opcodes, we can use the generic intrinsics directly as well. This fixes the poor fast-isel codegen by not expanding to an easily broken IR code sequence.

I'm intending to deal with the signed saturation equivalents as well.

Clang counterpart: https://reviews.llvm.org/D55879

Differential Revision: https://reviews.llvm.org/D55855

llvm-svn: 349630

Now that SimplifyDemandedBits/SimplifyDemandedVectorElts is simplifying vector elements, we're seeing more constant BUILD_VECTOR containing undefs.

This patch provides opt-in support for UNDEF elements in matchBinaryPredicate, passing NULL instead of the result ConstantSDNode* argument.

I've updated the (or (and X, c1), c2) -> (and (or X, c2), c1|c2) fold to demonstrate its use, which I believe is safe for undef cases.

Differential Revision: https://reviews.llvm.org/D55822

llvm-svn: 349629

Now that SimplifyDemandedBits/SimplifyDemandedVectorElts is simplifying vector elements, we're seeing more constant BUILD_VECTOR containing undefs.

This patch provides opt-in support for UNDEF elements in matchBinaryPredicate, passing NULL instead of the result ConstantSDNode* argument.

Differential Revision: https://reviews.llvm.org/D55822

llvm-svn: 349628